CBSE Class 11 Thermometry and Thermal Expansion Worksheet A

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1. Why is mercury used in making thermometers?

2. How would a thermometer be different if glass expanded more with increasing temperature than mercury?

3. Show the variation of specific heat at constant pressure with temperature?

4. Two thermometers are constructed in the same way except that one has a spherical bulb and the other an elongated cylindrical bulb. Which one will response quickly to temperature change?

5. A thermometer has wrong calibration. It reads the melting point of ice as – 10°C.It reads 60°C in place of 50°C. What is the temperature of boiling point of water on the scale?

6. Write the advantages and disadvantages of platinum resistance thermometer?

7. If the volume of block of metal changes by 0.12% when it is heated through 20°C. What is the co-efficient of linear expansion of the metal?

8. The density of a solid at 0°C and 500°C is in the ratio 1.027 : 1. Find the coefficient of linear expansion of the solid?

9. If one Mole of a monatomic gas is mixed with 3 moles of a diatomic gas. What is the molecular specific heat of the mixture at constant volume?

10. Calculate the difference between two principal specific heats of 1g of helium gas at N. T. P. Given Molecular weight of Helium = 4 and J = 4.186 J/cal and Universal Gas constant, R = 8.314J / mole / K?

11. Why does heat flow from a body at higher temperature to a body at lower temperature?

12. A one liter flask contains some mercury. IT is found that at different temperatures, then volume of air inside the flask remains the same. What is the volume of mercury in the flask? Given the co-efficient of linear expansion of glass = 9 × 10-6 / °C and co-efficient of volume expansion of mercury = 1.8 × 10^-4 / ⁰C

Click on link below to download CBSE Class 11 Thermometry and Thermal Expansion Worksheet A.